P. Amaudruz
A5049707265- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Nuclear physics research studies
- Dark Matter and Cosmic Phenomena
- High-Energy Particle Collisions Research
- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Advanced NMR Techniques and Applications
- Neutrino Physics Research
- Muon and positron interactions and applications
- Superconducting Materials and Applications
- Radiation Therapy and Dosimetry
- Astrophysics and Cosmic Phenomena
- Scientific Research and Discoveries
- X-ray Spectroscopy and Fluorescence Analysis
- Nuclear reactor physics and engineering
- Atomic and Molecular Physics
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Radioactive Decay and Measurement Techniques
- Advanced Chemical Physics Studies
- Cosmology and Gravitation Theories
- Distributed and Parallel Computing Systems
TRIUMF
2012-2024
Trine University
2007
Yale University
2002
The University of Melbourne
2002
University of Saskatchewan
2000
University of British Columbia
2000
Karlsruhe Institute of Technology
1999
University of Tübingen
1998
University of Regina
1994-1998
University of Bari Aldo Moro
1998
The T2K experiment is a long baseline neutrino oscillation experiment. Its main goal to measure the last unknown lepton sector mixing angle θ13 by observing νe appearance in νμ beam. It also aims make precision measurement of known parameters, Δm232 and sin22θ23, via disappearance studies. Other goals include various cross-section measurements sterile searches. uses an intense proton beam generated J-PARC accelerator Tokai, Japan, composed beamline, near detector complex (ND280), far...
Experimental results obtained at the CERN Super Proton Synchrotron on structure-function ratio F2n/F2p in kinematic range 0.004<x<0.8 and 0.4<Q2<190 GeV2, together with structure function F2d determined from a fit to published data, are used derive difference F2p(x)-F2n(x). The value of Gottfried sum F(F2p-F2n)dx/x=0.240±0.016 is below quark-parton-model expectation 1/3.Received 23 January 1991DOI:https://doi.org/10.1103/PhysRevLett.66.2712©1991 American Physical Society
DEAP-3600 is a single-phase liquid argon (LAr) direct-detection dark matter experiment, operating 2 km underground at SNOLAB (Sudbury, Canada). The detector consists of 3279 kg LAr contained in spherical acrylic vessel. This paper reports on the analysis $758\text{ }\text{ }\mathrm{tonne}\ifmmode\cdot\else\textperiodcentered\fi{}\mathrm{day}$ exposure taken over period 231 live-days during first year operation. No candidate signal events are observed WIMP-search region interest, which...
This Letter reports the first results of a direct dark matter search with DEAP-3600 single-phase liquid argon (LAr) detector. The experiment was performed 2 km underground at SNOLAB (Sudbury, Canada) utilizing large target mass, LAr contained in spherical acrylic vessel 3600 kg capacity. is viewed by an array PMTs, which would register scintillation light produced rare nuclear recoil signals induced particle scattering. An analysis 4.44 live days (fiducial exposure 9.87 ton day) data taken...
Presented here is the design of Mechanical Ventilator Milano (MVM), a novel mechanical ventilator designed for rapid mass production in response to COVID-19 pandemic address urgent shortage intensive therapy ventilators many countries, and growing difficulty procuring these devices through normal supply chains across borders. This an electro-mechanical equivalent old reliable Manley Ventilator, able operate both pressure-controlled pressure-supported ventilation modes. MVM optimized...
Dark matter lighter than 10 GeV/c$^2$ encompasses a promising range of candidates. A conceptual design for new detector, DarkSide-LowMass, is presented, based on the DarkSide-50 detector and progress toward DarkSide-20k, optimized low-threshold electron-counting measurement. Sensitivity to light dark explored various potential energy thresholds background rates. These studies show that DarkSide-LowMass can achieve sensitivity down solar neutrino floor GeV-scale masses significant MeV/c$^2$...
The DEAP-3600 experiment is located 2 km underground at SNOLAB, in Sudbury, Ontario. It a single-phase detector that searches for dark matter particle interactions within 1000-kg fiducial mass target of liquid argon. A first generation prototype (DEAP-1) with 7-kg argon demonstrated high level pulse-shape discrimination (PSD) reducing β/γ backgrounds and helped to develop low radioactivity techniques mitigate surface-related α backgrounds. Construction the nearly complete commissioning...
Abstract Future liquid-argon DarkSide-20k and Argo detectors, designed for direct dark matter search, will be sensitive also to core-collapse supernova neutrinos, via coherent elastic neutrino-nucleus scattering. This interaction channel is flavor-insensitive with a high-cross section, enabling high-statistics neutrino detection target masses of ∼50 t ∼360 respectively. Thanks the low-energy threshold ∼0.5 keV nr achievable by exploiting ionization channel, have potential discover bursts...
The half-life of $^{39}$Ar is measured using the DEAP-3600 detector located 2 km underground at SNOLAB. In 2016-2020, used a target mass (3269 $\pm$ 24) kg liquid argon distilled from atmosphere in direct-detection dark matter search. Such an also enables direct measurements isotope properties. decay dominant source triggers by two orders magnitude, ensuring high statistics and making well-suited for measuring this isotope's half-life. Use pulse-shape discrimination technique allows powerful...
Abstract The knowledge of scintillation quenching $$\alpha $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>α</mml:mi> </mml:math> -particles plays a paramount role in understanding -induced backgrounds and improving the sensitivity liquid argon-based direct detection dark matter experiments. We performed relative measurement MeV energy region using radioactive isotopes ( $$^{222}$$ <mml:mmultiscripts> <mml:mrow/> <mml:mn>222</mml:mn> </mml:mmultiscripts> Rn, $$^{218}$$...
The ${}^{2}\mathrm{H}{,}^{12}\mathrm{C}{,}^{40}\mathrm{Ca}{,}^{208}\mathrm{Pb}({\ensuremath{\pi}}^{+},{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}})$ reactions have been studied at ${T}_{{\ensuremath{\pi}}^{+}}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}282.7\phantom{\rule{0ex}{0ex}}\mathrm{MeV}$, and the ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$ invariant mass distributions...
Abstract The specific activity of the $$\beta $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>β</mml:mi> </mml:math> decay $$^{39}$$ <mml:msup> <mml:mrow /> <mml:mn>39</mml:mn> </mml:msup> Ar in atmospheric argon is measured using DEAP-3600 detector. DEAP-3600, located 2 km underground at SNOLAB, uses a total (3269 ± 24) kg liquid distilled from atmosphere to search for dark matter. This detector well-suited measure owing its very low background levels. achieved two...
The TRIUMF-ISAC gamma-ray escape-suppressed spectrometer (TIGRESS) is a new γ-ray detector array being developed for use at TRIUMF's Isotope Separator and Accelerator (ISAC) radioactive ion beam facility. TIGRESS will comprise 12 32-fold segmented clover-type HPGe detectors coupled with 20-fold modular Compton suppression shields custom digital signal processing electronics. This paper provides an overview of the project progress in its development to date.
Abstract The DEAP-3600 detector searches for the scintillation signal from dark matter particles scattering on a 3.3 tonne liquid argon target. largest background comes $$^{39}\text{ Ar }$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msup> <mml:mrow/> <mml:mn>39</mml:mn> </mml:msup> <mml:mspace/> <mml:mtext>Ar</mml:mtext> </mml:mrow> </mml:math> beta decays and is suppressed using pulse-shape discrimination (PSD). We use two types of PSD estimator:...
Abstract Aria is a plant hosting $${350}\,\hbox {m}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>350</mml:mn><mml:mspace/><mml:mtext>m</mml:mtext></mml:mrow></mml:math> cryogenic isotopic distillation column, the tallest ever built, which being installed in mine shaft at Carbosulcis S.p.A., Nuraxi-Figus (SU), Italy. one of pillars argon dark-matter search experimental program, lead by Global Argon Dark Matter Collaboration. It was designed to reduce abundance...